Advisory Details

March 10th, 2016

Microsoft Windows CreateWindowStation Privilege Escalation Vulnerability

ZDI-16-196
ZDI-CAN-3589

CVE ID CVE-2016-0095
CVSS SCORE 7.2, AV:L/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
VULNERABILITY DETAILS


This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of CreateWindowStation. The issue lies in the failure to check for NULL before dereferencing a pointer. An attacker can leverage this vulnerability to elevate privileges and execute code within the context of the kernel.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/library/security/MS16-034
DISCLOSURE TIMELINE
  • 2016-03-03 - Vulnerability reported to vendor
  • 2016-03-10 - Coordinated public release of advisory
CREDIT bee13oy of CloverSec Labs
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